Add for each attacking creature you control. Until end of turn, attacking creatures you control gain ": This creature gets +1/+0 until end of turn."

Dragon's Approach deals 3 damage to each opponent. You may exile Dragon's Approach and four cards named Dragon's Approach from your graveyard. If you do, search your library for a Dragon creature card, put it onto the battlefield, then shuffle.
A deck can have any number of cards named Dragon's Approach.

Whenever a player casts a red spell, you may gain 1 life.

Add for each artifact your opponents control.

As this creature enters, you may reveal a Dragon card from your hand. If you do or if you control a Dragon, this creature enters with a +1/+1 counter on it.
Dragons you control have ward .

Morph — Reveal a blue card in your hand.
When this creature is turned face up, look at target opponent's hand.

Defender, first strike

As an additional cost to cast this spell, you may reveal a Dragon card from your hand or choose a Dragon you control.
Dragon's Fire deals 3 damage to target creature or planeswalker. If you revealed a Dragon card or chose a Dragon as you cast this spell, Dragon's Fire deals damage equal to the power of that card or creature instead.

, , Sacrifice a black creature, a red creature, and a green creature: Search your library for a card named Hellkite Overlord, put it onto the battlefield, then shuffle.

Whenever a Dragon you control enters, put a gold counter on this artifact.
, Remove a gold counter from this artifact: Draw a card.
: Add one mana of any color.

Dragon's Presence deals 5 damage to target attacking or blocking creature.

This spell costs more to cast if it targets a Dragon.
Destroy target creature.

Whenever you cast a noncreature spell, surveil 1.
Delirium — As long as there are four or more card types among cards in your graveyard, this creature gets +2/+2, has flying, and attacks each combat if able.

Flying
Once during each of your turns, you may pay rather than pay the mana cost for a spell you cast from exile.
Whenever Dragon's Smile deals combat damage to a player, that player exiles that many cards from the top of their library. You may play those cards this turn.
Crew 3

Put two +1/+1 counters on target creature and untap it.

At the beginning of your end step, bolster X, where X is the number of tapped creatures you control.

Formidable — : Regenerate this creature. Activate only if creatures you control have total power 8 or greater.

Magecraft — Whenever you cast or copy an instant or sorcery spell, put a +1/+1 counter on this creature.
: Double the number of +1/+1 counters on this creature.

Until end of turn, target creature you control becomes a blue and red Dragon with base power and toughness 4/4, loses all abilities, and gains flying.
Overload

This land enters tapped unless you control a Swamp or a Mountain.
: Add or .

First strike
: Until end of turn, this creature becomes a Dragon, gets +5/+3, and gains flying and trample.

Whenever you cast your first Omen spell each turn, conjure a duplicate of that card onto the battlefield. It gains haste. At the beginning of the next end step, shuffle it into its owner's library.

Whenever this artifact or another artifact you control enters, put a charge counter on this artifact.
, Sacrifice this artifact: It deals damage equal to the number of charge counters on it to target player and that much damage to up to one target creature.

Dragon spells you cast cost less to cast.